Edmond r



(No Model.)

E. R. 000K.

GABBURETOR.

No. 531,779. Patented Jan. 1,1895` UNITED STATES PATENT Orifice.

EDMOND R. COOK, OF SACRAMENTO, CALIFORNIA, ASSIGNOR OF ONE-HALF TOVARREN F. DREW AND MOSES M. DREW?, OF SAME PLACE.

CARBURETOR.

SEECIFICATION forming part of Letters Patent No. 531,779, dated January1, 1895.

Application filed April 20, 1894. Serial No. 508,339. (No model.)

To will whom, it may concern:

Be it known that I, EDMOND R. COOK, a citizen of the United States,residing at Sacramento, county of Sacramento, State of California, haveinvented an Improvement in Oarburetors; and I hereby declare thefollowing to be a full, clear, and exact description of the same.

My invention relates to the class of carbureting devices especiallyadapted for use in connection with gas or explosive engines.

My invention consists of the constructions and combinations of deviceswhich I shall hereinafter fully describe and claim.

In the accompanying drawings, Figure l is a vertical section of mycarburetor. Fig. 2 is an enlarged View of the regulating valve seat andguides. Fig. 3 is an elevation ot' the regulating valve. Fig. a is a top.view of the gratings in the mixing chamber. Figs. 5 and 6 are detailsto be referred to.

A is the chamber in which the air and gas are mixed. This is divided bya vertical partition d into two compartments a and a? communicatin gbelow at a3. W'ith compartment c the air inlet pipe B communicates, andwith compartment a2 the pipe C to the engine connects. Upon pipe B isthe valve casing D, shown in detail in Fig. 2. It consists of a valveseat d, and lower and upper guides d' v for the stem e of the valve E.This valve is the regulating Valve and is shown in detailv in Fig. 3.Its body has a conical base and its upper portion has formed in it thegrooves e which taper downwardly both in depth and width. The valvemoves up toits seat to close and down to open the passage, and it isobvious that, on account of the tapering grooves e', the passage will beopened more, the farther down the valve moves, and will be contracted asthe valve moves up. The valve seat d is formed with a central raisedflange d2, which forms an annular chamber in said seat, the object ofwhich will be hereinafter explained.

The valve E is normally held up to its seat by means of the lifting rodF, which is controlled by the spiral spring G. This rod passes through asleeve Il lying within the air inlet pipe I3, and dependent from itstop. The

lower end has a cap h having perforations h.

The spring G bears above on a collar on rod F and below'in a plate g(see Figs. 5 and 6) supported by side pins g on the fork of abell cranlrlever g2 pivoted at g3, and having its 55 vertical arm impinged upon bya setting screw g4, by means of which the tension of the spring Goan beregulated and restored as needs may require.

Secured upon the lower end of the rod F, 6o

Above the valve casing D is the connection I from the source of oil, andinto this connection is tted the screw stem J which lies just above thestem of the regulating valve.

In thecompartments o. and a2 of the mixing chamber A are placed smallrocks K, or 7c other suitable loose packing freely pervious to gas, Saidpacking being held in place by the gratings L.

A screw stem M passes np through the base of chamber A and lies underthe lower end of rod F, serving to limit its downward movement.

N is a cock controlled air inlet to the base of the mixing chamber.

The operation of the device is as follows: 8c

The oil is supplied through connection I, and passing downVv into 'thevalve casing D is checked by valve E, which is itself normallyheldclosed'by the spring-actuated lifting rod F. Heated air is drawninto pipe B and passing downwardly, as Shown by the arrows, strikes thediskf on the lower end of the rod F. It presses down said disk whichdraws down its rod, and the valve E being thus relieved drops down, andthe oil passes it and 9o flows down into the vaporizing chamber formedby sleeve H. This sleeve being exposed to the heated air in pipe B isitself made sufficiently hot to vaporize the oil within it,

a result which is increased by the spreading out of the oil as it flowsdown over the spring G and is directed outwardlyin comparatively thinsheets against the walls of the sleeve, by the coils of said spring. Thevapor passes out through the perforations in cap h asis shown 10o by thearrows, and mingles with the air in chamber A. The cup shape of the diskf serves to catch whatever drip there may be and to spread it out to theaction of the air to vaporize it. The mixture of air and vapor nowpasses down through the packing K by which its component parts are morethoroughly mixed, and the gas rendered lighter, if necessary, by moreperfect vaporization due to contact with the heated packing. Thenecessary fresh air is supplied to the mixture through inlet N. Now, itwill be observed that this operation is wholly automatic and the mixtureis regulated to the needs of the engine, both in volume and proportions.The inrush of air to pipe Bis effected by the sucking of the engine andthe volume and force of this air are wholly dependent upon the engine.Therefore, when alarge quantity of air is drawn in, it acts to lower thevalve E to a greater extent, and this feeds more oil by means of itstapering grooves, and, consequently, the amount of gas formed iscommensurate with the volume of air. Vhen less air is drawn in, thevalve E is not opened so far and less oil is supplied, less gas isformed and the mixture is still proportionate and is proper for therequirements of the engine.

The object of the annular chamber around the valve seat is to provide areceptacle for sediment, so that foreign substances shall not pass intoand clog the valve.

The object of the upper screw stem .I is to permit the regulating valveE to be opened by hand, whenever it may be necessary to let some oildown, as at the beginning.

The lower screw stem M forms an adjustable stop for limiting themovement of the regulating valve E.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a carburetor for explosive engines, a mixing chamber communicatingwith the engine, an air inlet communicating with said mixing chamber, asleeve in said air inlet forming a vaporizing chamber exposed to theinrushing air and communicating with the mixing chamber, a normallyclosed spring controlled valve for feeding oil to the vaporizing chamberand a means actuated by the inrushing air for operating said valvesubstantially as herein described.

2. In a carburetor for explosive engines, a mixing chamber communicatingwith the en gine, an air inlet communicating withfsaid mixing chamber, asleeve in said air inlet forming a vaporizing chamber exposed to theinrushing air and communicating with the mixing chamber, a normallyclosed springactuated valve for feeding oil to the vaporizing chamberand a means actuated by the inrushing air for operating said valve,consisting of a spring-controlled rod within said sleeve bearing on thevalve and having a disk with which the air comes in contact said rodhaving the coils of its spring serving as conductors for spreading theoil outwardly and directing it in thin sheets against the walls of thesleeve whereby vaporization is accelerated substantially as hereindescribed.

3. In a carburetor for explosive engines, a mixing chamber communicatingwith the enigine, an air inlet communicating with said mixing chamber, avaporizing chamber exposed to the inrushing air and communicating withthe mixing chamber, a valve for feeding the oil to the vaporizingchamber, and adapted by its movement to regulate the supply of oil, aspiral conductor in said vaporizingchamber for directing the oiloutwardly in thin sheets against the inner walls of the vaporizingchamber and a means, actuated by the inrushing air for operating thevalve to regulate said supply, substantially as herein described.

4. In a carburetor for explosive engines, the combination of the valvehaving a stem projecting above and below, and having the taperinggrooves for regulating the feed of the oil, a valve casing consisting ofa valve seat with a central raised rim, and the upper and lowerguidesfor the stem of the valve, and a means actuated by the indrawn air foroperating said valve, substantially as and for the purpose described.

5. In a carburetor for explosive engines, the combination, of the valvehaving a stem pro jecting above and below, and having tapering groovesfor regulating the speed of the oil,

a valve casing consisting of a valve seat with a central raised rim, andupper and lower guides for the stem of the valve, the inlet pipe for theindrawn air, a sleeve in said pipe forming a vaporizing chamber, thelifting rod, the spring surrounding the same whereby the rod holds thevalve to its seat, and a disk or iiange on the rod exposed to theindrawn air whereby the rod is moved to permit the valve to open,substantially as herein described.

6. In a carburetor for explosive engines, the combination of a mixingchamber, an inlet pipe for the indrawn air, a sleeve forming avaporizing chamber exposed within the inlet pipe and communicating withthe mixing chamber, a regulating valve controlling the communicationbetween the oil supply and the vaporizing chamber, the lifting rod inthe vaporizing chamber having the spiral spring therein and adapted tocontrol the regulating valve, said spring also serving to conduct theoil outwardly in thin sheets against the inner walls of the sleeve, andthe liange or disk on the lifting rod exposed within the air inlet pipe,substantially as herein described.

7. In a carburetor for explosive engines, the combination of the airinlet pipe, the sleeve exposed therein, a valve for feeding the oil tothe sleeve, the movable rod in the sleeve for controlling the valve andthe spiral spring for actuating the rod and serving also as a channelfor directing the oil-outwardly to the walls of the sleeve,substantially as herein described.

8. In a carburetor for explosive engines, the combination of the airinlet pipe, a sleeve IOO IIO

IZO

forming a vaporizing chamber exposed therein, the regulating valveinline with the sleeve for feeding the oil thereto, thespring-controlled rod for controlling said Valve and whose spring servesas a means for conducting the oil outwardly against the inner Walls ofthe sleeve, and the upper screw stein for opening the valve by hand,substantially as herein described.

9. In a carburetor, the combination of the air inlet, the sleeve forminga vaporizin g chamber exposed therein, the regulating valve for feedingthe oil thereto, the rod for controlling said valve, a springsurrounding said rod and serving as a means for conducting the oiloutwardly against the inner Walls of the sleeve and the disk or flangeon the lower end hand. l

EDMOND R. 000K. Witnesses;

D. E. ALEXANDER, B. N. BUGBEY.

